PT-42 Z-42 Blue Thread Locker 0.20oz

PT-42 Z-42 Blue Thread Locker 0.20oz Prevents the loosening of threaded hardware due to vibration. Blue (Z-42) is a medium locker whereas Red (Z-71) is a permanent locker. These are the best thread lockers available. For use up to 1/4-20 threaded hardware.   Medium strength, seals metal parts against vibration Parts can later be disassembled with hand tools Works best on: Metal, Aluminium